#ifndef __mDNSDebug_h
#define __mDNSDebug_h

#include <stdarg.h>

#define MDNS_CHECK_PRINTF_STYLE_FUNCTIONS 0

typedef enum {
    MDNS_LOG_MSG,
    MDNS_LOG_OPERATION,
    MDNS_LOG_SPS,
    MDNS_LOG_INFO,
    MDNS_LOG_DEBUG,
} mDNSLogLevel_t;

// Set this symbol to 1 to answer remote queries for our Address, reverse mapping PTR, and HINFO records
#define ANSWER_REMOTE_HOSTNAME_QUERIES 0

// Set this symbol to 1 to do extra debug checks on malloc() and free()
// Set this symbol to 2 to write a log message for every malloc() and free()
//#define MACOSX_MDNS_MALLOC_DEBUGGING 1

//#define ForceAlerts 1
//#define LogTimeStamps 1

// Developer-settings section ends here

#if MDNS_CHECK_PRINTF_STYLE_FUNCTIONS
#define IS_A_PRINTF_STYLE_FUNCTION(F,A) __attribute__ ((format(printf,F,A)))
#else
#define IS_A_PRINTF_STYLE_FUNCTION(F,A)
#endif

// Variable argument macro support. Use ANSI C99 __VA_ARGS__ where possible. Otherwise, use the next best thing.

#if (defined(__GNUC__))
#if ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 2)))
#define MDNS_C99_VA_ARGS        1
#define MDNS_GNU_VA_ARGS        0
#else
#define MDNS_C99_VA_ARGS        0
#define MDNS_GNU_VA_ARGS        1
#endif
#define MDNS_HAS_VA_ARG_MACROS      1
#elif (_MSC_VER >= 1400) // Visual Studio 2005 and later
#define MDNS_C99_VA_ARGS            1
#define MDNS_GNU_VA_ARGS            0
#define MDNS_HAS_VA_ARG_MACROS      1
#elif (defined(__MWERKS__))
#define MDNS_C99_VA_ARGS            1
#define MDNS_GNU_VA_ARGS            0
#define MDNS_HAS_VA_ARG_MACROS      1
#else
#define MDNS_C99_VA_ARGS            0
#define MDNS_GNU_VA_ARGS            0
#define MDNS_HAS_VA_ARG_MACROS      0
#endif

#if (MDNS_HAS_VA_ARG_MACROS)
#if (MDNS_C99_VA_ARGS)
#define debug_noop( ... ) ((void)0)
#define LogMsg( ... )           LogMsgWithLevel(MDNS_LOG_MSG, __VA_ARGS__)
#define LogOperation( ... )     do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_OPERATION, __VA_ARGS__); } while (0)
#define LogSPS( ... )           do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_SPS,       __VA_ARGS__); } while (0)
#define LogInfo( ... )          do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_INFO,      __VA_ARGS__); } while (0)
#elif (MDNS_GNU_VA_ARGS)
#define	debug_noop( ARGS... ) ((void)0)
#define	LogMsg( ARGS... )       LogMsgWithLevel(MDNS_LOG_MSG, ARGS)
#define	LogOperation( ARGS... ) do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_OPERATION, ARGS); } while (0)
#define	LogSPS( ARGS... )       do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_SPS,       ARGS); } while (0)
#define	LogInfo( ARGS... )      do { if (mDNS_LoggingEnabled) LogMsgWithLevel(MDNS_LOG_INFO,      ARGS); } while (0)
#else
#error Unknown variadic macros
#endif
#else
// If your platform does not support variadic macros, you need to define the following variadic functions.
// See mDNSShared/mDNSDebug.c for sample implementation
#define debug_noop 1 ? (void)0 : (void)
#define LogMsg LogMsg_
#define LogOperation (mDNS_LoggingEnabled == 0) ? ((void)0) : LogOperation_
#define LogSPS       (mDNS_LoggingEnabled == 0) ? ((void)0) : LogSPS_
#define LogInfo      (mDNS_LoggingEnabled == 0) ? ((void)0) : LogInfo_
extern void LogMsg_(const char *format, ...)       IS_A_PRINTF_STYLE_FUNCTION(1, 2);
extern void LogOperation_(const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(1, 2);
extern void LogSPS_(const char *format, ...)       IS_A_PRINTF_STYLE_FUNCTION(1, 2);
extern void LogInfo_(const char *format, ...)      IS_A_PRINTF_STYLE_FUNCTION(1, 2);
#endif

#if MDNS_DEBUGMSGS
#define debugf debugf_
extern void debugf_(const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(1, 2);
#else
#define debugf debug_noop
#endif

#if MDNS_DEBUGMSGS > 1
#define verbosedebugf verbosedebugf_
extern void verbosedebugf_(const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(1, 2);
#else
#define verbosedebugf debug_noop
#endif

extern int	      mDNS_LoggingEnabled;
extern int	      mDNS_PacketLoggingEnabled;
extern int        mDNS_DebugMode;	// If non-zero, LogMsg() writes to stderr instead of syslog
extern const char ProgramName[];

extern void LogMsgWithLevel(mDNSLogLevel_t logLevel, const char *format, ...) IS_A_PRINTF_STYLE_FUNCTION(2, 3);
// LogMsgNoIdent needs to be fixed so that it logs without the ident prefix like it used to
// (or completely overhauled to use the new "log to a separate file" facility)
#define LogMsgNoIdent LogMsg

#if APPLE_OSX_mDNSResponder && MACOSX_MDNS_MALLOC_DEBUGGING >= 1
extern void *mallocL(char *msg, unsigned int size);
extern void freeL(char *msg, void *x);
extern void LogMemCorruption(const char *format, ...);
extern void uds_validatelists(void);
extern void udns_validatelists(void *const v);
#else
#define mallocL(X,Y) malloc(Y)
#define freeL(X,Y) free(Y)
#endif


#endif